Year Persons 2005-01-01 22200 2006-01-01 18700 2007-01-01 19700 2008-01-01 16600 2009-01-01 17800 2010-01-01 22475 2011-01-01 23425 2012-01-01 22675 2013-01-01 22675 2014-01-01 23575 2015-01-01 29875 2016-01-01 29075 2017-01-01 30525